I have a sister that's older then me (10 years). We have never been best friends, there's no real sisterly bond, she's not one I call a 'friend'. She's simply, just a family member.

Anyhow, growing up my parents separated a few times, the second incident I went to live with her as my dad didn't know what to do and he had work. Things were great and I loved it. Parents got back together and I went back home.

Fast forward to 2001 and an incident happened with my BIL that I was involved in, my sister didn't believe what happened (police and court involved) and I was pushed from her life + her children. It took many years for the communication to be restored.

2005 I was engaged and she became a bit closer. I then fell pg with DD1 and she was supportive and things were great.

I fell pg with my 2nd and she lost the plot again at me, said I was an unfit mother, don't think of my DD, should have used contraception... You get the drift?!

Pregnancy #3 and things were still no better. Once DS arrived things changed and we began talking again.

Up until end of May this year, things have been good. DH and I set a date for our wedding and I let her know so she could get the night off work...

Thats when poop hit the fan, again. I was questioned over why that date, not enough notice, to hard as it was school holidays.... The excuses and argument continued. Still, I sent her an invitation. I got a simple text from her saying they (her, BIL and kids) wouldn't be attending. I replied with a thank you for letting me know.

I've not heard from her since! She used to always comment of Facebook photos, status updates etc, and now, not a word. She's always online and commenting on others things, very close to my parents as well. She would often SMS too.

Soooo, do I contact her and ask wtf is going on, or do I simply forget it and continue on with my life and forget what ever it is that's going on?